|
- Measure battery voltage at cranking.
|
|
Q.
Is the check result normal?
|
|
Check battery (Refer
to GROUP 54A - Battery - On-vehicle Service
- Battery Test ).
|
|
|
![](../../../img/13/AK300990AC00ENG.png)
|
Q.
Is the check result normal?
Go to Step 3
.
Repair or
replace.
|
![](../../../img/13/AK300990AC00ENG.png)
|
- Disconnect connector, and measure at harness
side.
- Ignition switch: ON
- Voltage between terminal No. 3 and earth.
OK: System voltage
Q.
Is the check result normal?
Go to Step 5
.
Go to Step 4
.
|
![](../../../img/13/AK305894AB00ENG.png)
![](../../../img/13/AK300990AC00ENG.png)
|
Q.
Is the check result normal?
![](../../../buttons/03btn001.png)
Check
intermediate connectors B-17, C-02, C-202, and repair if
necessary. If intermediate connectors are normal, check
and repair harness between B-119 (terminal No. 3)
alternator connector and C-307 (terminal No. 2) ignition
switch connector.
- Check power supply line for open/short
circuit.
Repair or
replace.
|
![](../../../img/13/AK305625AB00ENG.png)
|
Q.
Is the check result normal?
Go to Step 6
.
Repair or
replace.
|
![](../../../img/13/AK305625AB00ENG.png)
|
- Disconnect connector, and measure at harness
side.
- Ignition switch: ON
- Voltage between terminal No. 45 and earth.
OK: System voltage
Q.
Is the check result normal?
Go to Step 8
.
Go to Step 7
.
|
![](../../../img/13/AK305625AB00ENG.png)
![](../../../img/13/AK300990AC00ENG.png)
|
- Check output line for open/short circuit.
Q.
Is the check result normal?
Replace
alternator.
Repair.
|
![](../../../img/13/AK305625AB00ENG.png)
|
- Measure engine-ECU <M/T> or
engine-A/T-ECU <A/T> terminal
voltage.
- Engine: Idling after warm-up
- Transmission: Neutral <M/T> or P range
<A/T>
- Radiator fan: Inactive
- Voltage between terminal No. 45 and earth.
OK: Switching the headlamps to ON from OFF
causes the voltage to increase.
Q.
Is the check result normal?
Go to Step 9
.
![](../../../buttons/03btn002.png)
|
|
Q.
Does trouble symptom persist?
|
|
Replace engine-ECU
<M/T> or engine-A/T-ECU
<A/T>.
|
|
|
|
Intermittent
malfunction (Refer to GROUP 00 - How to Use
Troubleshooting/Inspection Service Points ).
|
|
|